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公开(公告)号：US20150218988A1
公开(公告)日：2015-08-06
申请号：US14614055
申请日：2015-02-04
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Roberto Argolini , Davide Mercuri
CPC classification number: F01N3/0821 , B01D46/0057 , F01N3/021 , F01N3/0814 , F01N3/0842 , F01N3/0885 , F01N9/00 , F01N9/002 , F01N9/005 , F01N11/007 , F01N13/009 , F01N2560/025 , F01N2560/06 , F01N2900/1404 , F01N2900/1614 , F02B37/00 , G05B15/02 , Y02T10/24 , Y02T10/47
Abstract: An aftertreatment system of an internal combustion engine is disclosed. The aftertreatment system includes in a sequence along the exhaust pipe, a lean NOx trap and a particulate filter. An air/fuel ratio sensor is located upstream of the lean NOx trap and downstream of the turbine outlet to determine the air/fuel ratio during a regeneration process (DeNOx) in the lean NOx trap. A NOx sensor is located downstream of the lean NOx trap or downstream of the particulate filter, to determine NOx in the exhaust pipe. A turbine temperature is determined in accordance with a first means, and a temperature during a desulphation process (DeSOx) in the lean NOx trap is determined in accordance with a second means. At least one of the first and second means for determining a temperature may be a temperature sensor.
Abstract translation: 公开了一种内燃机的后处理系统。 后处理系统沿着排气管的顺序包括贫NOx捕集器和微粒过滤器。 空气/燃料比传感器位于贫NOx捕集器的上游并且在涡轮机出口的下游，以确定贫NOx捕集器中的再生过程（DeNOx）期间的空气/燃料比。 NOx传感器位于贫NOx捕集器的下游或颗粒过滤器的下游，以确定排气管中的NOx。 根据第一装置确定涡轮机温度，并且根据第二装置确定贫NOx捕集器中的脱硫过程（DeSOx）期间的温度。 用于确定温度的第一和第二装置中的至少一个可以是温度传感器。
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公开(公告)号：US09551249B2
公开(公告)日：2017-01-24
申请号：US14614055
申请日：2015-02-04
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Roberto Argolini , Davide Mercuri
IPC: F01N3/00 , F01N3/08 , F01N13/00 , B01D46/00 , F01N9/00 , F01N11/00 , F02B37/00 , G05B15/02 , F01N3/021
CPC classification number: F01N3/0821 , B01D46/0057 , F01N3/021 , F01N3/0814 , F01N3/0842 , F01N3/0885 , F01N9/00 , F01N9/002 , F01N9/005 , F01N11/007 , F01N13/009 , F01N2560/025 , F01N2560/06 , F01N2900/1404 , F01N2900/1614 , F02B37/00 , G05B15/02 , Y02T10/24 , Y02T10/47
Abstract: An aftertreatment system of an internal combustion engine is disclosed. The aftertreatment system includes in a sequence along the exhaust pipe, a lean NOx trap and a particulate filter. An air/fuel ratio sensor is located upstream of the lean NOx trap and downstream of the turbine outlet to determine the air/fuel ratio during a regeneration process (DeNOx) in the lean NOx trap. A NOx sensor is located downstream of the lean NOx trap or downstream of the particulate filter, to determine NOx in the exhaust pipe. A turbine temperature is determined in accordance with a first means, and a temperature during a desulphation process (DeSOx) in the lean NOx trap is determined in accordance with a second means. At least one of the first and second means for determining a temperature may be a temperature sensor.
Abstract translation: 公开了一种内燃机的后处理系统。 后处理系统沿着排气管的顺序包括贫NOx捕集器和微粒过滤器。 空气/燃料比传感器位于贫NOx捕集器的上游并且在涡轮机出口的下游，以确定贫NOx捕集器中的再生过程（DeNOx）期间的空气/燃料比。 NOx传感器位于贫NOx捕集器的下游或颗粒过滤器的下游，以确定排气管中的NOx。 根据第一装置确定涡轮机温度，并且根据第二装置确定贫NOx捕集器中的脱硫过程（DeSOx）期间的温度。 用于确定温度的第一和第二装置中的至少一个可以是温度传感器。
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